Glee’s hot teacher, Matthew Morrison, reveals what will happen — AND what you’ll be hearing — during the season finale tomorrow night!

In the words of Journey, don’t stop believin’ — the June 8 season finale of Glee is guaranteed to be utterly amazing. But what’s going to happen? Leave it to the delectable Matthew Morrison to spill the beans!

“Quinn Fabray (Dianna Agron) has her baby and we’re going to do a bigJourneymedley. It’s a very, very emotional episode,” the 31-year-old actor said on Ryan Seacrest‘s radio show June 7, adding ,“I think the subject matter was very emotional, but the fact that it was the last day for all of us, the last episode [of the season], we were all sad.”

Another spoiler: he’s going to be singing the last song of the season! “I’m going to be singing “Somewhere Over the Rainbow” with my ukulele,” he told Ryan. “Mark [Salling] is going to back me up on guitar. But it’s a great journey because it’s actually the song that I auditioned with for the show, so its all kind of coming back around full circle.”

We can’t wait! In case you’re literally going nuts until tomorrow night, check out this clip of Matthew and Mark singing “Over the Rainbow” when theGleetour came to NYC May 29!